S-MMA 120H - Welding machine Stamos - Free user manual and instructions

USER MANUAL S-MMA 120H Stamos

INPUT AC: 200V 7 8

Diagram of an electrical circuit setup with labeled components A, B, C, D, and E connected to a power source.

This User Manual has been translated for your convenience using machine translation. Reasonable efforts have been made to provide an accurate translation; however, no automated translation is perfect nor is it intended to replace human translators. The official User Manual is the English version. Any discrepancies or differences created in the translation are not binding and have no legal effect for compliance or enforcement purposes. If any questions arise related to the accuracy of the information contained in the User Manual, please refer to the English version of those contents which is the official version.

1. Symbols

	Read the operating instructions.
	Recyclable product.
	The product meets the requirements of relevant safety standards.
	Wear protective clothing that protects the entire body
	Caution! Wear protective gloves.
	Wear protective glasses.
	Wear protective footwear.
	Caution! Hot surface can cause burns!
	Caution! Risk of fire or explosion.
	Caution! Harmful vapors, danger of poisoning. Gases and fumes can be hazardous to your health. Welding process gives off welding gases and fumes. Inhalation of these substances can be hazardous to health.
	Use a welding mask with an appropriate filter shade.
	CAUTION! Harmful radiation from the welding arc

Do not touch live parts.

CAUTION! The illustrations in this instruction manual are for reference only and may differ from the actual product in some details.

1. Technical data

Product name	MMA welding machine
Model	S-MMA 120H	S-MMA 160H
Nominal input voltage [V] / Frequency [Hz]	230~/50
Type of welding	MMA
Welding current range [A]	20-120	20-160
Idle voltage [V].	65	65
Welding current in 100% duty cycle [A]	66	88
Welding current in 60% duty cycle [A]	85	114
Welding current in 30% duty cycle [A]	120	160
Arc force	YES	YES
Anti-stick	YES	YES
Hot start	YES	YES
Cooling	Fan	Fan
Insulation class	H	H
Degree of protection of the housing	IP21S	IP21S
Ambient temperature during operation [°C]	-10 ~ 40	-10 ~ 40
Dimensions [mm]	330x130x220	330x120x220
Weight [kg]	4 4.6

3. General Description

This manual is intended to assist you for safe and reliable use. The product is designed and manufactured strictly according to technical specifications using the latest technology and components and maintaining the highest quality standards.

CAREFULLY READ AND UNDERSTAND THIS MANUAL BEFORE STARTING THE WORK.

To ensure long and reliable operation of the device, make sure to operate and maintain it properly in accordance with the guidelines in this instruction manual. The technical data and specifications in this manual are up-to-date. The manufacturer reserves the right to make changes in order to improve the quality. Taking the technical progress and the possibility of reducing noise into account, the unit is designed and built in such a way so that risks resulting from noise emissions are reduced to the lowest possible level.

4. Safety of use

CAUTION! Read all safety warnings and instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury or death.

The term "device" or "product" in the warnings and in the description of the instructions refers to: MMA welding machine

4.1. General

• Take care of your own safety and the safety of bystanders by carefully reading and following the instructions in the unit manual.
• Only qualified personnel should be allowed to start up, use, service and repair the unit.
• Do not misuse the unit.

4.2. Guidelines for securing fire hazardous work

Preparing the building and rooms for fire hazardous works consists in:

• cleaning the rooms or places where the work will be carried out of any flammable materials and contamination;
• moving all flammable and non-flammable objects in flammable packaging away to a safe distance;
• securing materials that cannot be removed, e.g. welding spatter, by covering them with e.g. sheet metal, gypsum boards, etc;
• checking whether materials or objects susceptible to ignition in adjacent rooms do not require local protection;
• sealing with non-combustible materials all installation and ventilation openings, etc., in the vicinity of the work site;
• protecting electrical and gas cables with flammable insulation against welding splashes or mechanical damage, if they are located within the risk range of fire hazardous work;
• make sure that painting or other work with flammable substances is not being carried out at the location where the work is to be done.

Sparks may cause fires

Welding sparks can cause fires, explosions and burns to unprotected skin. Wear welding gloves and protective clothing when welding. Remove or secure all flammable materials and substances from the work area. Do not weld closed containers or tanks that have contained flammable liquids. Such containers or tanks should be flushed before welding to remove flammable liquids. Do not weld near flammable gases, vapors or liquids. Fire fighting equipment (fire blankets and powder or snow extinguishers) should be located near the work area in a visible and easily accessible location.

Welded materials can cause burns

Never touch welded parts with unprotected body parts. Always wear welding gloves and pliers when touching or moving welded material.

4.3. Preparation of the workplace for welding

Caution! Welding can cause a fire or explosion.

• Observe occupational safety and health regulations for welding and equip the work area with a suitable fire extinguisher.

• Welding in places where flammable materials can ignite is forbidden.

• Welding in an atmosphere containing an explosive mixture of flammable gases, vapors, mists or dusts with air is forbidden.

• Remove all flammable materials within a radius of 12m from the welding site and, if this is impossible, cover the flammable materials with a non-flammable cover.
  • Take precautionary measures against sparks and glowing metal particles.
• Note that sparks or hot metal splinters can penetrate through slots or openings in protective caps, covers or screens.
• Do not weld tanks or barrels that contain or have contained flammable substances. Do not weld in their vicinity either.
• Do not weld pressurized tanks, pressure lines or pressure tanks.
  • Always provide sufficient ventilation.
• Make sure you are in a stable position before starting to weld.

4.4. Personal protective equipment

Caution! Arc radiation can damage the eyes or skin of the body.

• When welding, wear clean, oil-free protective clothing made of non-flammable and non-conductive material (leather, thick cotton), leather gloves, high boots and a protective hood.
• Before welding, get rid of any flammable or explosive items such as propane-butane lighters and matches.
• Use face protection (helmet or shield) and cover the eyes with a shade matching the welder's eyesight and welding current. The safety standards suggest a tint of No. 9 (minimum No. 8) for any amperage below 300 amperes. Lower shielding tints may be used if the arc covers the workpiece.
• Always use approved safety glasses with a side shield under the helmet or other shield.
• Use workplace shields to protect others from glare or spatter.
• Always wear earplugs or other hearing protection against excessive noise and to prevent spatter from entering your ears.
• Bystanders should be warned against looking at electric arc.

4.5. Protection against shock

Caution! Electric shock can be fatal.

• Plug the power cord into the nearest outlet and route it in a practical and safe way. Avoid spreading the cable carelessly around the room on an unstudied surface, which may result in electric shock or fire.
• Contact with electrically charged parts can cause an electric shock or severe burns.
• The electric arc and the working area are electrically charged when the current flows.
• The input circuit and the internal circuitry of the unit are also live when the power is on.
• Do not touch the live components.
• Wear dry, lint-free, insulated gloves and protective clothing.
• Use insulating mats or other insulating coatings on the floor that are large enough to prevent contact between the body and the object or the floor.
• Do not touch the electric arc.
• Turn off the power supply before handling, cleaning or replacing the electrode.
• Make sure the grounding cable is properly connected and that the plug is properly inserted into the grounded outlet. Improper grounding of the unit may result in a risk to life or health.
• Regularly check the power cables for damage or lack of insulation. A damaged cable should be replaced. Careless repair of insulation may result in death or personal injury.
• Turn off the device when not in use.
• The cable must not be wrapped around the body.
• The workpiece must be properly grounded.

• Only accessories that are in good condition may be used.

• Damaged parts of the device must be repaired or replaced. Use safety belts when working at heights.

• All equipment and safety items should be stored in one place.
• Keep the tip of the handle away from the body when the trigger is activated.
• Attach the ground cable to the workpiece or as close to it as possible (e.g. to the workbench).

Caution! The machine may still be live when the power cord is disconnected.

- After turning off the unit and disconnecting the voltage cable, check the voltage on the input capacitor and make sure that the voltage value is zero, otherwise do not touch the unit components.

4.6. Gases and fumes

Caution! Gas can be hazardous to health or lead to death!

• When welding, pay attention to the exchange of air, avoid inhaling the vapors.
• Remove chemical substances (greases, solvents) from the surface of the workpieces as they burn under high temperature, giving off poisonous fumes.
• Welding galvanized parts is allowed only with efficient extraction with filtration and a supply of clean air. Zinc vapors are very toxic, and the symptom of poisoning is the so-called zinc fever.

5. Instructions for use

5.1. General

• The device should be used in accordance with its intended purpose, in compliance with the health and safety regulations and the restrictions resulting from the data on the rating plate (IP level, duty cycle, supply voltage, etc.).
• Do not open the unit as this will void the warranty; also, exploding exposed parts may cause injury.
• The manufacturer shall not be liable for technical changes of the equipment or material damage resulting from the introduction of these changes.
• If the equipment malfunctions, contact the service centre.
• Do not cover the ventilation slots of the device - place the welder at a distance of 30~cm from the surrounding objects.
• The welder must not be held under the arm or close to the body.
• Do not install the equipment in rooms with aggressive environment, high dustiness, and near devices with high electromagnetic field emission.

5.2. Storage of the device

• Protect the unit from water and moisture.
• The welding machine must not be placed on a heated surface.
• Store the machine in a dry and clean room.

5.3. Connecting the unit

5.3.1. Electrical connection

• The equipment should be connected by a qualified person. In addition, a person with the necessary qualifications should check that the earthing and electrical installation including protection system complies with safety regulations and is functioning properly.
• Position the equipment near the workplace.
• To connect the unit, avoid cables that are too long.
• Single-phase welding machines should be connected to a socket equipped with a grounding pin.
• Welding machines powered by 3-phase mains are delivered without a plug, you should obtain such a plug on your own and have the installation performed by a qualified person.

CAUTION! The device may only be operated if connected to installation with a functional fuse.

6. Product overview

Front view

1 S-MMA 120H INVERTER TECHNOLOGY STAMOS GERMERY 2 3 4 5 + - 6

Rear view:

INPUT AC: 200V 7 8

1 - Welding current display
2 - Power light
3 - Welding current control knob
4 - Overheating indicator
5 - Cable socket (positive pole)
6 - Cable socket (negative pole)
7 - Power cord
8 - ON/OFF switch

7. Connecting the wires

1. Connect the ground cable to the connector marked with a "+" sign and twist the cable plug to secure the connection.
2. Connect the welding gun cable to the connector marked with a "-" sign and twist the cable plug to secure the connection.

Caution! Cable polarity may vary! All polarity information should be described on the packaging provided by the electrode manufacturer!

1. Connect the power cord and turn on the power. After connecting the mass cable to the workpiece, work can begin.

Electrical circuit diagram showing connections between a power supply unit and a battery, labeled with points A, B, C, D, and E.

A - Power cord
B - Welding torch
C - Welded workpiece
D - Grounding
E - Additional grounding of the workstation

8. Operation of the device

Note: When using an electric generator, be sure to disconnect the unit from the power supply when starting the generator.

Starting the device:

1) Connect the wires in accordance with section "7. Connecting the wires."
2) Connect the unit to the power supply.
3) Turn on the device using the ON/OFF button (on the back of the device). The display will show the set value of the welding current and the fan will start.
4) Adjust the desired welding current using the knob.
5) Start welding.

Switching off the device:

1) Switch off the appliance using the ON/OFF button.
2) Disconnect the unit from the power supply.

Caution! Overloading the machine will activate the overheating indicator and automatically stop operation. In this case, wait until the machine cools down and the alarm light turns off. When the machine is back to normal, you can resume operation.

9. Disposal of the packaging

Please keep all packaging material (cardboard, plastic strips and polystyrene foam) to ensure that the unit is protected during shipment, should it become necessary to send it to a service center!

10. Transport and storage

When transporting the unit, protect it from shocks and tipping over, and do not place it "upside down". Store the unit in a well-ventilated room where dry air is present and corrosive gases are not present.

11. Cleaning and maintenance

Pull the mains plug before each cleaning and when the unit is not in use and cool the unit completely.

Use only non-corrosive cleaning agents for cleaning the surfaces.

Do not spray the unit with a stream of water or immerse it in water.

Make sure that no water enters through the ventilation openings in the casing.

Clean the ventilation openings with a brush and compressed air.

After each cleaning, all the parts should be dried well before the unit is used again.

Store the unit in a dry and cool place protected from moisture and direct sunlight.

- Remove dust regularly with dry and clean compressed air.

12. Regular inspection of the device

Check the unit regularly for damage. If this is the case, stop using the unit. Please contact your dealer immediately for repair.

What should I do if a problem occurs?

Please contact your dealer and have the following information ready:

- Invoice number and serial number (the serial number is indicated on the rating plate).

- Potentially a photo of the defective part.

The service technician will be able to better determine what the problem is if you describe it as precisely as possible. The more detailed you are, the faster they can help you!

NOTE: Never open the device without consulting customer service. This can lead to loss of warranty.

Diagram of an electrical testing setup with labeled components A, B, C, D, and E connected to a power source.

INPUT AC: 200V 7 8

Diagram of an electrical testing setup with labeled components A, B, C, D, and E connected to a power source.

A - Napájecí kabel

B - Svařovací hořák

Diagram of an electrical testing setup with labeled components A, B, C, D, and E connected to a power source.

Electrical circuit diagram showing connections between a power supply unit and a battery, labeled with points A, B, C, D, and E.

Electrical circuit diagram showing connections between a power supply unit and a battery, labeled with points A, B, C, D, and E.

INPUT AC: 200V 7 8

Electrical circuit diagram showing connections between a power supply unit and a battery, labeled with points A, B, C, D, and E.

INPUT AC: 200V 7 8

Electrical circuit diagram showing connections between a power supply unit and a battery, labeled with points A, B, C, D, and E.

A - Strømkabel

B - Svejsebrænder

C - Svejset emne

D - Jording

For the disposal of the device please consider and act according to the national and local rules and regulations.

CONTACT

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